지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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The purpose of this study was to compare two saddle height determination methods by the effectiveness of pedal reaction force. Ten male subjects (age: $24.0{\pm}2.4years$, height: $175.1{\pm}5.4cm$, weight: $69.3{\pm}11.1kg$, inseam: $77.8{\pm}4.5cm$) participated in three minutes, 60 rpm cycle pedaling tests with the same load and cadence. Subject's saddle height was determined by $25^{\circ}$ knee flexion angle (K25) when the pedal crank was at the 6 o'clock position (knee angle method) and 97% (T97), 100% (T100), 103% (T103) of trochanter height (trochanteric method). The RF (resultant force), EF (effective force), and IE (index of effectiveness) were compared by measuring 3D motion and 3-axis pedal reaction force data during 4 pedaling phases (phase1: $330^{\circ}-30^{\circ}$, phase2: $30^{\circ}-150^{\circ}$, phase3: $150^{\circ}-210$, phase4: $210^{\circ}-330^{\circ}$). Results showed that there were significant differences in EF at phase1 between T97 and K25, in EF at phase4 between T100 and T103, in IE at total phase between T97 and K25, between T100 and T103, in IE at phase1 & phase2 between T97 and K25. There was higher IE in the K25 than any other saddle heights, which means that K25 was better pedaling effectiveness than the trochanteric method. Therefore it was suggested the saddle height as 103.7% of trochanter height that converted from K25.
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참고문헌 (18)
참고문헌 신청
배재혁 / 2012 / 단신 : 사이클 피팅을 위한 전동 승차 조절기 개발 / 한국운동역학회지 22(3):373~378
Bailey, M. P. / 2003 / Kinematics of cycling in relation to anterior knee pain and patellar tendinitis / Journal of Sports Sciences 21(8):649~657
Bini, R. R. / 2010 / Fatigue effects on the coordinative pattern during cycling : Kinetics and kinematics evaluation / Journal of Electromyography and Kinesiology 20(1):102~107
Borysewicz E. / 1985 / Bicycle road racing complete program for training and competition / Velo-News Corp
De Vey Mestdagh, K. / 1998 / Personal perspective : in search of an optimum cycling posture / Applied Ergonomics 29(5):325~334
Bailey, M. P. / 2003 / Kinematics of cycling in relation to anterior knee pain and patellar tendinitis / Journal of Sports Sciences 21(8):649~657
Bini, R. R. / 2010 / Fatigue effects on the coordinative pattern during cycling : Kinetics and kinematics evaluation / Journal of Electromyography and Kinesiology 20(1):102~107
Borysewicz E. / 1985 / Bicycle road racing complete program for training and competition / Velo-News Corp
De Vey Mestdagh, K. / 1998 / Personal perspective : in search of an optimum cycling posture / Applied Ergonomics 29(5):325~334
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